WorksheetsAtomic History & Structure
Total questions: 12
Worksheet time: 8mins
Who was the first person to think of an atom?
Democritus
Dalton
Rutherford
Bohr
What does "atomos" mean?
tiny
carbon
uncuttable
invisible
Whose model was a small sphere with a hard shell (billiard ball)?
Democritus
Dalton
Rutherford
Bohr
Who developed the Plum Pudding Model (Chocolate Chip Cookie Model)?
Democritus
Thomson
Rutherford
Einstein
Who found out atoms are mostly empty space?
Democritus
Thomson
Rutherford
Einstein
What is the dense, positively charged center of an atom called?
(a)
Who said that atoms move around the nucleus in certain paths and came up with the Solar System Model?
Democritus
Thomson
Rutherford
Bohr
What is the modern (current) model of the atom called?
Electron Cloud Model
Solar System Model
Plum Pudding Model
Billiard Ball Model
What are the positively charged particles in the nucleus called?
(a)
What are the particles with no charge called?
(a)
What are the very small, negatively charged particles called?
(a)
What does amu stand for?
atoms make unicorns
atomic mass units
atomic messenger units
always mention umbrellas
